No problem, we've got 3892 and 6460 to multiply
3892 × 6460 = 6460 × (3892)
+ 6460 × 2 what gives us 12920
+ 6460 × 90 that is equal 581400
+ 6460 × 800 giving us 5168000
+ 6460 × 3000 that equals 19380000

= 25142320
